1.e4!!d52.d4!!...The Blackmar-Diemer gambit! Black's most popular move here is to accept it.2....dxe43.Nc3...Pressuring the central pawn on e43....Nf64.f3exf3Fully accepting the gambit, now we're gonna recapture with development, AND get a semi-open file for the rook5.Nxf3Bg45...g6The Fianchetto Defense, a pretty quiet one for black but pretty solid6.Bc4Bg77.O-OPretty equal6.h3Bh5This is where the real fun starts!7.g4!!...Crazy kingside attack!7....Bg68.Ne5e69.Qf3...Look at the crazy development from white9....c610.g5Nh511.Bd3Qxd412.Nxg6hxg613.Rf1Qh4+14.Kd1f515.gxf6Nxf616.Bxg6+White definitely has plenty of compensation, ignore stockfish